The constants of nature are the fundamental laws of physics that apply throughout the universe: gravity, velocity of light, electromagnetism and quantum mechanics. They encode the deepest secrets of the universe, and express at once our greatest knowledge and our greatest ignorance about the cosmos.

The book is suitable for a first-year graduate (5th year) course as well as a reference for engineers and scientists, the book is clearly written and provides an essential presentation of key topics in the study of gas-particle and gas-droplet flows.

An approach to performance-based assessments that embeds assessments in digital games in order to measure how students are progressing toward targeted goals.To succeed in today's interconnected and complex world, workers need to be able to think systemically, creatively, and critically. Equipping K-16 students with these twenty-first-century competencies requires new thinking not only about what should be taught in school but also about how to develop valid assessments to measure and support these competencies.

In the many studies of games and young people's use of them, little has been written about an overall "ecology" of gaming, game design and play–mapping the ways that all the various elements, from coding to social practices to aesthetics, coexist in the game world. This volume looks at games as systems in which young users participate, as gamers, producers, and learners. The Ecology of Games (edited by Rules of Play author Katie Salen) aims to expand upon and add nuance to the debate over the value of games–which so far has been vociferous but overly polemical and surprisingly shallow.